US7377713B2 - Front-wheel support for a wheel chair - Google Patents
Front-wheel support for a wheel chair Download PDFInfo
- Publication number
- US7377713B2 US7377713B2 US10/791,699 US79169904A US7377713B2 US 7377713 B2 US7377713 B2 US 7377713B2 US 79169904 A US79169904 A US 79169904A US 7377713 B2 US7377713 B2 US 7377713B2
- Authority
- US
- United States
- Prior art keywords
- tube
- front wheel
- curved
- wheel support
- section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related, expires
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/0047—Castors in general; Anti-clogging castors characterised by details of the rolling axle
- B60B33/0052—Castors in general; Anti-clogging castors characterised by details of the rolling axle the rolling axle being inclined
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/0002—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/04—Castors in general; Anti-clogging castors adjustable, e.g. in height; linearly shifting castors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/32—Articulated members
- Y10T403/32254—Lockable at fixed position
- Y10T403/32467—Telescoping members
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/32—Articulated members
- Y10T403/32254—Lockable at fixed position
- Y10T403/32467—Telescoping members
- Y10T403/32475—Telescoping members having detent
- Y10T403/32501—Cam or wedge
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/32—Articulated members
- Y10T403/32254—Lockable at fixed position
- Y10T403/32467—Telescoping members
- Y10T403/32524—Self-locking
Definitions
- the present invention relates to a frontwheel support for a wheel chair.
- Wheel chairs typically have one or two front wheels. These front wheels are fixed to the frame of the wheel chair by means of a front wheel support.
- the front wheel support is usually designed to be operated in a upright position where the front wheel fork turns about an axis that is essentially vertical with respect to the ground.
- FIG. 1A schematically shows a first front wheel support of a wheel chair in accordance with the invention
- FIG. 1B schematically shows a side view of the first front wheel support of a wheel chair in accordance with the invention
- FIG. 1C schematically shows a top view of the first front wheel support of a wheel chair in accordance with the invention
- FIG. 2 schematically shows a side view of a wheel chair in accordance with the invention
- FIG. 3A schematically shows a side view of the first front wheel support of a wheel chair in accordance with the invention
- FIG. 3B schematically shows a side view of the first front wheel support of a wheel chair in accordance with the invention
- FIG. 3C schematically shows a front view of the first front wheel support of a wheel chair in accordance with the invention
- FIG. 4A schematically shows a second front wheel support of a wheel chair in accordance with the invention
- FIG. 4B schematically shows a partial view of the second front wheel support of a wheel chair in accordance with the invention.
- FIG. 5 schematically shows a third front wheel support of a wheel chair in accordance with the invention.
- FIGS. 1A 1 B, and 1 C A first embodiment, according to the present invention, is depicted in FIGS. 1A 1 B, and 1 C.
- the front wheel support 10 for a wheel chair is depicted. Only part of a frame member 9 of the wheel chair is visible.
- the front wheel support 10 comprises a first curved part in form of a curved tube 11 being attached to the frame member 9 of the wheel chair.
- the first curved tube 11 is attached to the frame member 9 by means of welding.
- the first curved tube 11 may also be an integral part of the frame member 9 .
- a second curved part 12 which may be a tube part or a massive part, is provided.
- the curved tube 11 and the curved part 12 can be bended in the direction as depicted or in another direction.
- This second curved part 12 has a first portion 12 . 1 with a curvature being identical to the curvature of the first curved tube 11 . Furthermore, the first portion 12 . 1 has a cross section A 1 allowing the first portion 12 . 1 to fit inside the first curved tube 11 , as illustrated in FIG. 1B .
- the second curved part 12 comprises a second portion 12 . 2 with a wheel fork seat for mounting a front wheel fork of said wheel chair. The front wheel fork and the front wheel are not visible in FIGS. 1A , 1 B, and 1 C.
- the front wheel support 10 illustrated in the FIGS. 1A , 1 B, and 1 C comprises a section that can be extended or expanded when being situated inside the first curved tube 11 in order to form a tight fit with respect to the second curved part 12 .
- the first portion 12 . 1 has a fork-like shape with two ends 12 . 3 . These two ends 12 .
- FIG. 1C are spaced apart so that a screw 15 together with a conical element 16 fits between the two ends 12 . 3 , as illustrated in FIG. 1C .
- the conical element 16 is pushed between the two ends 12 . 3 of the first portion 12 . 1 . Due to this, the two ends 12 . 3 are expanded and pushed against the inner wall of the first curved tube 11 .
- the load path is provided between the first portion 12 . 1 of the second curved part 12 and the first curved tube 11 if the screw 15 is in the right position.
- the securing arrangement 14 can be released by turning the screw 15 in the opposite direction.
- the two ends 12 . 3 will return to their original position since the conical part withdraws.
- FIG. 2 A schematic representation of a wheel chair 20 is given in FIG. 2 .
- the wheel chair 20 comprises at least one front wheel support 10 , according to the present invention.
- This front wheel support 16 The front wheel support 10 comprises a first curved tube 11 being attached to the frame member 9 of the wheel chair.
- the first curved tube 11 is attached to the frame member 9 .
- the first curved tube 11 may be an integral part of the frame member 9 , as illustrated in FIG. 2 .
- a second curved part 12 is provided.
- This second curved part 12 has a first portion 12 . 1 with a curvature being identical to the curvature of the first curved tube 11 .
- the second curved part 12 comprises a second portion with a wheel fork 13 for mounting a front wheel 22 of said wheel chair 20 .
- the wheel chair 20 further comprises a rear wheel 22 .
- FIGS. 3A through 3C Further details of the embodiment of FIGS. 1A through 1C are depicted in FIGS. 3A through 3C .
- a special securing arrangement 14 is provided.
- the front wheel support 10 illustrated in the FIGS. 3A , 3 B, and 3 C comprises a section that can be extended or expanded when being situated inside the first curved tube 11 in order to form a tight fit with respect to the second curved part 12 .
- the first portion 12 . 1 has a fork-like shape with two ends 12 . 3 . These two ends 12 . 3 are spaced apart so that a screw 15 together with a conical element 16 fits between the two ends 12 . 3 , as illustrated in FIG. 3C .
- the conical part 16 When turning the screw 15 , the conical part 16 is pushed between the two ends 12 . 3 of the first portion 12 . 1 . Due to this, the two ends 12 . 3 are pushed against the inner wall of the first curved tube 11 .
- the load path is provided between the first portion 12 . 1 of the second curved part 12 and the first curved tube 11 if the screw 15 (not visible in any of the FIGS. 3A through 3C ) is in the right position.
- the securing arrangement 14 can be released by turning the screw 15 in the opposite direction.
- the two ends 12 . 3 will return to their original position since the conical part 16 withdraws.
- FIGS. 4A and 4B Yet another embodiment is depicted in FIGS. 4A and 4B .
- the first curved tube 11 is attached to the frame 9 .
- the second curved part 12 comprises a longitudinal slit 12 . 4 .
- the securing arrangement 14 comprises a sliding element 14 . 1 with a threaded hole 14 . 2 and a screw. This screw is not visible in the FIGS. 4A and 4B .
- the screw sits in a mounting piece 14 . 4 that is attached to the outside of the first curved tube 11 .
- the screw is inserted through a hole 14 . 5 in the mounting piece 14 . 4 in sits in the threaded hole 14 . 2 of the sliding element 14 . 1 and the screw is accessible from outside through the longitudinal slit 12 .
- the sliding element 14 . 1 moves together with the first portion 12 . 1 inside the first curved tube 11 up or down, if the second curved part 12 is pushed into or pulled out of the first curved tube 11 .
- the screw is tightened. Due to this, the sliding element 14 . 1 together with the second curved part 12 is fixed with respect to the first curved tube 11 and the mounting piece 14 . 4 .
- FIGS. 4A and 4B also show that the second curved part 12 comprises a second portion 12 . 2 with a wheel fork seat 13 for mounting a front wheel fork of said wheel chair.
- the first curved tube 11 comprises a securing arrangement 14 with a nut 17 .
- This nut 17 sits on the end portion 11 . 1 of the first curved tube 11 .
- the end portion of the first curved tube 11 is threaded allowing the nut 17 to be fixed or released by turning it.
- Inside the first curved tube 11 there is a conical part.
- This conical part sits on the first portion 12 . 1 of the second curved part 12 .
- the conical part provides for a tight fight between the end portion 11 . 1 of the first curved tube 11 and the first portion 12 . 1 of the second curved part 12 .
- the principle is similar to the one being used in connection with garden hoses or pipes where one cylindrical piece is to be tightly connected to another cylindrical piece in the same manner. The difference, however, is in the dimensions and materials used. Since the front wheel support 10 has to be stable, a more solid and rigid version is required.
Abstract
A front wheel support for a wheel chair, the front wheel support having a curved tube for attachment to a frame member of the wheel chair and a curved part. The curved part has a first portion with a curvature identical to the curvature of the curved tube, and a cross section allowing the first portion of the curved part to fit inside the curved tube. The curved part further has a second portion with a wheel fork seat for mounting a front wheel fork of the wheel chair.
Description
This application claims priority of European Patent Application No. EP 03 004 757.5, filed 4 Mar. 2003, incorporated herein by reference.
1. Technical Field
The present invention relates to a frontwheel support for a wheel chair.
2. Prior Art
Wheel chairs typically have one or two front wheels. These front wheels are fixed to the frame of the wheel chair by means of a front wheel support. The front wheel support is usually designed to be operated in a upright position where the front wheel fork turns about an axis that is essentially vertical with respect to the ground.
When changing the geometry of the whole wheel chair, e.g. when adjusting the seat heights and inclination, the frame of the wheel chair is tilted with respect to the ground. This leads to a situation where the front wheel support is not longer in an correct upright position. Due to this, the front wheel cannot move and turn as freely as intended. This means that after having modified the wheel chair's geometry, one usually has to adjust the front wheel support to bring the axis in an upright position.
Known wheel chairs require for such an adjustment several screws to be loosened, the support to be adjusted and the screws to be tightened again. Other solutions require special tools. Since the adjustment of known wheel chairs is complicated, authorized dealers or specialists are required to perform this task.
It is an objective of the present invention to provide a front wheel support that can more easily be adjusted.
It is another objective of the present invention to provide a front wheel support that is stable and light weight.
The invention will now be described in detail and with the help of the drawings.
A first embodiment, according to the present invention, is depicted in FIGS. 1A 1B, and 1C. The front wheel support 10 for a wheel chair is depicted. Only part of a frame member 9 of the wheel chair is visible. The front wheel support 10 comprises a first curved part in form of a curved tube 11 being attached to the frame member 9 of the wheel chair. In the present embodiment, the first curved tube 11 is attached to the frame member 9 by means of welding. The first curved tube 11 may also be an integral part of the frame member 9. A second curved part 12, which may be a tube part or a massive part, is provided. The curved tube 11 and the curved part 12 can be bended in the direction as depicted or in another direction.
This second curved part 12 has a first portion 12.1 with a curvature being identical to the curvature of the first curved tube 11. Furthermore, the first portion 12.1 has a cross section A1 allowing the first portion 12.1 to fit inside the first curved tube 11, as illustrated in FIG. 1B . The second curved part 12 comprises a second portion 12.2 with a wheel fork seat for mounting a front wheel fork of said wheel chair. The front wheel fork and the front wheel are not visible in FIGS. 1A , 1B, and 1C.
It is important for the front wheel support 10 to be very stable. This requires the second curved part 12 to form a tight fit inside the first curved tube 11. This tight fit needs to be releasable in order to allow the front wheel support 10 to be adjusted. According to the present invention, a special securing arrangement 14 is provided. The front wheel support 10 illustrated in the FIGS. 1A , 1B, and 1C comprises a section that can be extended or expanded when being situated inside the first curved tube 11 in order to form a tight fit with respect to the second curved part 12. For this reason, the first portion 12.1 has a fork-like shape with two ends 12.3. These two ends 12.3 are spaced apart so that a screw 15 together with a conical element 16 fits between the two ends 12.3, as illustrated in FIG. 1C . When turning the screw 15, the conical element 16 is pushed between the two ends 12.3 of the first portion 12.1. Due to this, the two ends 12.3 are expanded and pushed against the inner wall of the first curved tube 11. The load path is provided between the first portion 12.1 of the second curved part 12 and the first curved tube 11 if the screw 15 is in the right position. The securing arrangement 14 can be released by turning the screw 15 in the opposite direction. The two ends 12.3 will return to their original position since the conical part withdraws.
A schematic representation of a wheel chair 20 is given in FIG. 2 . The wheel chair 20 comprises at least one front wheel support 10, according to the present invention. This front wheel support 16. The front wheel support 10 comprises a first curved tube 11 being attached to the frame member 9 of the wheel chair. In the present embodiment, the first curved tube 11 is attached to the frame member 9. The first curved tube 11 may be an integral part of the frame member 9, as illustrated in FIG. 2 . A second curved part 12 is provided.
This second curved part 12 has a first portion 12.1 with a curvature being identical to the curvature of the first curved tube 11. The second curved part 12 comprises a second portion with a wheel fork 13 for mounting a front wheel 22 of said wheel chair 20. The wheel chair 20 further comprises a rear wheel 22.
Further details of the embodiment of FIGS. 1A through 1C are depicted in FIGS. 3A through 3C . According to the present invention, a special securing arrangement 14 is provided. The front wheel support 10 illustrated in the FIGS. 3A , 3B, and 3C comprises a section that can be extended or expanded when being situated inside the first curved tube 11 in order to form a tight fit with respect to the second curved part 12. For this reason, the first portion 12.1 has a fork-like shape with two ends 12.3. These two ends 12.3 are spaced apart so that a screw 15 together with a conical element 16 fits between the two ends 12.3, as illustrated in FIG. 3C . When turning the screw 15, the conical part 16 is pushed between the two ends 12.3 of the first portion 12.1. Due to this, the two ends 12.3 are pushed against the inner wall of the first curved tube 11. The load path is provided between the first portion 12.1 of the second curved part 12 and the first curved tube 11 if the screw 15 (not visible in any of the FIGS. 3A through 3C ) is in the right position. The securing arrangement 14 can be released by turning the screw 15 in the opposite direction. The two ends 12.3 will return to their original position since the conical part 16 withdraws.
Yet another embodiment is depicted in FIGS. 4A and 4B . The first curved tube 11 is attached to the frame 9. According to this embodiment, the second curved part 12 comprises a longitudinal slit 12.4. The securing arrangement 14 comprises a sliding element 14.1 with a threaded hole 14.2 and a screw. This screw is not visible in the FIGS. 4A and 4B . The screw sits in a mounting piece 14.4 that is attached to the outside of the first curved tube 11. The screw is inserted through a hole 14.5 in the mounting piece 14.4 in sits in the threaded hole 14.2 of the sliding element 14.1 and the screw is accessible from outside through the longitudinal slit 12.4. The sliding element 14.1 moves together with the first portion 12.1 inside the first curved tube 11 up or down, if the second curved part 12 is pushed into or pulled out of the first curved tube 11. When the correct position of the front wheel support is reached, the screw is tightened. Due to this, the sliding element 14.1 together with the second curved part 12 is fixed with respect to the first curved tube 11 and the mounting piece 14.4.
According to another embodiment, the first curved tube 11 comprises a securing arrangement 14 with a nut 17. This nut 17 sits on the end portion 11.1 of the first curved tube 11. The end portion of the first curved tube 11 is threaded allowing the nut 17 to be fixed or released by turning it. Inside the first curved tube 11 there is a conical part. This conical part sits on the first portion 12.1 of the second curved part 12. When fixing the nut 17, the conical part provides for a tight fight between the end portion 11.1 of the first curved tube 11 and the first portion 12.1 of the second curved part 12. The principle is similar to the one being used in connection with garden hoses or pipes where one cylindrical piece is to be tightly connected to another cylindrical piece in the same manner. The difference, however, is in the dimensions and materials used. Since the front wheel support 10 has to be stable, a more solid and rigid version is required.
Claims (12)
1. Front wheel support for a wheel chair, said front wheel support comprising:
a longitudinally curved tube for being attached to a frame member of the wheel chair and
a longitudinally curved part, said curved part having
a first portion with
a curvature being identical to the curvature of the curved tube, and
a cross section allowing the first portion of the curved part to fit inside the curved tube, and
a second portion with a wheel seat for mounting a front wheel fork of said wheel chair;
wherein the first portion of the curved part is telescopically shiftable inside the curved tube to provide for an increased or decreased overlap between the first portion of the curved part and the curved tube, and
wherein a securing arrangement is provided between the first portion and the curved tube that allows the curved tube to be fixed with respect to the curved part, said securing arrangement comprising a screw and a conical part both of which set inside the curved tube.
2. The front wheel support of claim 1 , wherein due to the curvature the inclination of the front wheel (22) is adjustable by increasing or decreasing the overlap.
3. The front wheel support of claim 1 , wherein a load path is provided between the first portion of the curved part and the curved tube.
4. The front wheel support of claim 1 , wherein the first portion of the curved part comprises a section which is expandable to form a tight fit with respect to the curved tube.
5. The front wheel support of claim 4 , wherein the section can be expanded when the screw is turned to push the conical part to expand the section against the curved tube.
6. Wheel chair comprising at least one front-wheel support of one of claims 2 , 3, 4, 5 or 1.
7. Front wheel support for a wheel chair, said front wheel support comprising:
a tube formed in a first arc along a length thereof for engagement to a frame member of the wheel chair and
a part formed in a second arc along a length thereof, said part having,
a first portion wherein the longitudinal curvature of the second arc is identical to the longitudinal curvature of the first arc of the tube,
a cross section allowing the first portion of the part to fit inside the tube, and
a second portion with a wheel seat for mounting a front wheel fork of said wheel chair,
wherein the first portion of the part is telescopically shiftable inside the tube to provide an increased or decreased overlap between the first portion of the part and the tube, and
wherein the first portion of the part has the cross section of the first portion of the part which is expandable to form a tight fit with respect to the tube.
8. The front wheel support of claim 7 , wherein the inclination of the front wheel is adjustable by the increasing or decreasing of the overlap.
9. The front wheel support of claim 7 , wherein a load path is provided between the first portion of the part and the tube.
10. The front wheel support of claim 7 , wherein a securing arrangement is provided between the expandable section and the tube that allows the tube to be fixed with respect to the part, said securing arrangement having a screw and a conical part both of which sit inside the curved tube.
11. The front wheel support of claim 10 , wherein the section can be expanded when the screw if turned to push the conical part to expand the section against the tube.
12. The front wheel support of claim 7 , wherein the section has two opposing ends which are expandable against the tube.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03004757A EP1454764B1 (en) | 2003-03-04 | 2003-03-04 | Front-wheel support for a wheel chair |
EP03004757.5 | 2003-03-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20040172786A1 US20040172786A1 (en) | 2004-09-09 |
US7377713B2 true US7377713B2 (en) | 2008-05-27 |
Family
ID=32798767
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/791,699 Expired - Fee Related US7377713B2 (en) | 2003-03-04 | 2004-03-04 | Front-wheel support for a wheel chair |
Country Status (3)
Country | Link |
---|---|
US (1) | US7377713B2 (en) |
EP (1) | EP1454764B1 (en) |
DE (1) | DE60333540D1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110133420A1 (en) * | 2008-11-13 | 2011-06-09 | Smith Kevin L | Three-wheeled skateboard method |
US20150308526A1 (en) * | 2014-04-29 | 2015-10-29 | Goodrich Corporation | Torque bar and methods for making |
US11203230B2 (en) | 2018-09-06 | 2021-12-21 | Invacare International Gmbh | Caster wheel support assembly for a wheelchair and wheelchair comprising the same |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111907983A (en) * | 2020-09-14 | 2020-11-10 | 曾艳红 | Outdoor movable type anti-dumping garbage can |
Citations (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US102927A (en) * | 1870-05-10 | Improvement in children s carriages | ||
US292873A (en) * | 1884-02-05 | Method of and machinery for treating rags for paper-stock | ||
US554381A (en) * | 1896-02-11 | Stove-leg | ||
GB1053263A (en) | 1900-01-01 | |||
US1482955A (en) | 1921-12-10 | 1924-02-05 | United Electric Company | Adjustable caster |
US1835144A (en) | 1928-12-08 | 1931-12-08 | George A Cleaveland | Adjustable swivel caster |
US2534539A (en) * | 1945-10-15 | 1950-12-19 | Oscar T Topper | Stroller |
US2649611A (en) * | 1950-11-21 | 1953-08-25 | Chester W Muszynski | Coaster for furniture legs |
US4229856A (en) * | 1977-09-21 | 1980-10-28 | Lamondine S.A. | Wheel support arrangements |
US4265382A (en) * | 1979-10-12 | 1981-05-05 | Edwards Thomas M | Multi purpose carrier for vehicle |
US4357735A (en) * | 1981-06-05 | 1982-11-09 | Graco Metal Products, Inc. | Ball and socket safety hinge |
US4386466A (en) * | 1981-08-17 | 1983-06-07 | Dale L. Avers | Crutch gauge measuring device |
US4813693A (en) * | 1986-09-30 | 1989-03-21 | Invacare Corporation | Adjustable child's wheelchair |
DE3904150C1 (en) | 1989-02-11 | 1990-07-05 | Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe, De | Lightweight wheelchair |
US5149092A (en) * | 1991-08-16 | 1992-09-22 | Kevin Parsons | Locking means for extendable baton |
US5195712A (en) * | 1988-03-25 | 1993-03-23 | Goodall Melvyn J | Extendable seat arrangement for vehicles |
US5267946A (en) * | 1992-04-01 | 1993-12-07 | Samuel Singer | Knee brace with adjustable rigid posterior strut |
US5361454A (en) * | 1993-08-02 | 1994-11-08 | Century Products Company | Snap-on swivel wheel assembly |
US5373591A (en) * | 1992-09-02 | 1994-12-20 | Sari H. Gill | Shower-commode chair and transfer track |
US5800318A (en) * | 1995-03-20 | 1998-09-01 | Coviello; Gerald A. | Rehabilitation thru athletic training principal/walker type device |
US5806548A (en) * | 1994-09-06 | 1998-09-15 | Goldstein; Jeffery P. | Quadcane with adjustable stance |
US5918553A (en) * | 1997-04-28 | 1999-07-06 | Teknion Furniture Systems | Adjustable height tables |
DE29901471U1 (en) | 1999-01-29 | 1999-07-22 | Sopur Medizintechnik Gmbh | Manually operated wheelchair |
US6076205A (en) * | 1999-03-08 | 2000-06-20 | Yang; Chih-Huang | Playpen with detachable frame sections |
US6085766A (en) * | 1998-09-25 | 2000-07-11 | Geary; John A. | Geary convertible crutch system |
US6189906B1 (en) * | 1998-02-27 | 2001-02-20 | Otto Bock Orthopaedische Industrie Besitz-Und Verwaltungs-Kommanditgesellschaft | Wheelchair having a single tube bend |
US6196571B1 (en) * | 1998-10-06 | 2001-03-06 | Link Treasure Limited | Folding release device for a stroller |
US20020017404A1 (en) * | 2000-06-21 | 2002-02-14 | Mobility E-Z, Llc. | Battery powered, joystick controlled folding wheelchair |
US20020140196A1 (en) * | 2001-03-29 | 2002-10-03 | Crouch John D. | Medical walker |
US20060113733A1 (en) * | 2004-10-04 | 2006-06-01 | Jct Corporation | Wheel construction and a vehicle provided with the wheel construction |
-
2003
- 2003-03-04 DE DE60333540T patent/DE60333540D1/en not_active Expired - Lifetime
- 2003-03-04 EP EP03004757A patent/EP1454764B1/en not_active Expired - Lifetime
-
2004
- 2004-03-04 US US10/791,699 patent/US7377713B2/en not_active Expired - Fee Related
Patent Citations (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US102927A (en) * | 1870-05-10 | Improvement in children s carriages | ||
US292873A (en) * | 1884-02-05 | Method of and machinery for treating rags for paper-stock | ||
US554381A (en) * | 1896-02-11 | Stove-leg | ||
GB1053263A (en) | 1900-01-01 | |||
US1482955A (en) | 1921-12-10 | 1924-02-05 | United Electric Company | Adjustable caster |
US1835144A (en) | 1928-12-08 | 1931-12-08 | George A Cleaveland | Adjustable swivel caster |
US2534539A (en) * | 1945-10-15 | 1950-12-19 | Oscar T Topper | Stroller |
US2649611A (en) * | 1950-11-21 | 1953-08-25 | Chester W Muszynski | Coaster for furniture legs |
US4229856A (en) * | 1977-09-21 | 1980-10-28 | Lamondine S.A. | Wheel support arrangements |
US4265382A (en) * | 1979-10-12 | 1981-05-05 | Edwards Thomas M | Multi purpose carrier for vehicle |
US4357735A (en) * | 1981-06-05 | 1982-11-09 | Graco Metal Products, Inc. | Ball and socket safety hinge |
US4386466A (en) * | 1981-08-17 | 1983-06-07 | Dale L. Avers | Crutch gauge measuring device |
US4813693A (en) * | 1986-09-30 | 1989-03-21 | Invacare Corporation | Adjustable child's wheelchair |
US5195712A (en) * | 1988-03-25 | 1993-03-23 | Goodall Melvyn J | Extendable seat arrangement for vehicles |
DE3904150C1 (en) | 1989-02-11 | 1990-07-05 | Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe, De | Lightweight wheelchair |
US5149092A (en) * | 1991-08-16 | 1992-09-22 | Kevin Parsons | Locking means for extendable baton |
US5267946A (en) * | 1992-04-01 | 1993-12-07 | Samuel Singer | Knee brace with adjustable rigid posterior strut |
US5373591A (en) * | 1992-09-02 | 1994-12-20 | Sari H. Gill | Shower-commode chair and transfer track |
US5361454A (en) * | 1993-08-02 | 1994-11-08 | Century Products Company | Snap-on swivel wheel assembly |
US5806548A (en) * | 1994-09-06 | 1998-09-15 | Goldstein; Jeffery P. | Quadcane with adjustable stance |
US5800318A (en) * | 1995-03-20 | 1998-09-01 | Coviello; Gerald A. | Rehabilitation thru athletic training principal/walker type device |
US5918553A (en) * | 1997-04-28 | 1999-07-06 | Teknion Furniture Systems | Adjustable height tables |
US6189906B1 (en) * | 1998-02-27 | 2001-02-20 | Otto Bock Orthopaedische Industrie Besitz-Und Verwaltungs-Kommanditgesellschaft | Wheelchair having a single tube bend |
US6085766A (en) * | 1998-09-25 | 2000-07-11 | Geary; John A. | Geary convertible crutch system |
US6196571B1 (en) * | 1998-10-06 | 2001-03-06 | Link Treasure Limited | Folding release device for a stroller |
DE29901471U1 (en) | 1999-01-29 | 1999-07-22 | Sopur Medizintechnik Gmbh | Manually operated wheelchair |
US6076205A (en) * | 1999-03-08 | 2000-06-20 | Yang; Chih-Huang | Playpen with detachable frame sections |
US20020017404A1 (en) * | 2000-06-21 | 2002-02-14 | Mobility E-Z, Llc. | Battery powered, joystick controlled folding wheelchair |
US20020140196A1 (en) * | 2001-03-29 | 2002-10-03 | Crouch John D. | Medical walker |
US20060113733A1 (en) * | 2004-10-04 | 2006-06-01 | Jct Corporation | Wheel construction and a vehicle provided with the wheel construction |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110133420A1 (en) * | 2008-11-13 | 2011-06-09 | Smith Kevin L | Three-wheeled skateboard method |
US8075006B2 (en) * | 2008-11-13 | 2011-12-13 | Smith Kevin L | Three-wheeled skateboard system and method |
US20150308526A1 (en) * | 2014-04-29 | 2015-10-29 | Goodrich Corporation | Torque bar and methods for making |
US9850968B2 (en) * | 2014-04-29 | 2017-12-26 | Goodrich Corporation | Torque bar and methods for making |
US11255392B2 (en) | 2014-04-29 | 2022-02-22 | Goodrich Corporation | Torque bar and methods for making |
US11203230B2 (en) | 2018-09-06 | 2021-12-21 | Invacare International Gmbh | Caster wheel support assembly for a wheelchair and wheelchair comprising the same |
Also Published As
Publication number | Publication date |
---|---|
EP1454764B1 (en) | 2010-07-28 |
DE60333540D1 (en) | 2010-09-09 |
EP1454764A1 (en) | 2004-09-08 |
US20040172786A1 (en) | 2004-09-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5163339A (en) | Bicycle auxiliary handle assembly | |
US4056903A (en) | Wall support mechanism for adjusting the vertical orientation and height of a wall member | |
US5201334A (en) | Crutch | |
US10874566B2 (en) | Stand up wheelchair | |
US10238556B1 (en) | Multi-adjustable wheelchair and frame therefor | |
US7377713B2 (en) | Front-wheel support for a wheel chair | |
RU2095043C1 (en) | Adjustable wheeled chair | |
CA2409651C (en) | Wheelchair having a double turnbuckle height adjustment | |
US6182939B1 (en) | Telescopic bicycle seat post system | |
US6773073B1 (en) | Adjustable foot rest | |
US20210120953A1 (en) | Table glide spacer | |
WO1996010980A1 (en) | Auxiliary wheelchair attachment for pulling a wheelchair | |
ITBS950108A1 (en) | VARIABLE HEIGHT BICYCLE SADDLE | |
US2988318A (en) | Shore attachment combination | |
US11389351B2 (en) | Wheelchair footrest assembly | |
JP2007307072A (en) | Wheelchair | |
US3574375A (en) | Multiple section arm extension for traffic signal poles | |
JPH06211177A (en) | Front stand device for motorcycle | |
JP3043629U (en) | Bicycle seat posture adjustment mechanism | |
US6729660B2 (en) | Adjustable base unit for angularly adjusting mounting disposition of silo fill tube | |
JPH0220940Y2 (en) | ||
JP2005225362A (en) | Bicycle and bicycle component folding structure | |
JP2001238918A (en) | Footrest attaching structure for wheelchair | |
GB2103553A (en) | Collapsible structure for a bicycle | |
IT201800002317U1 (en) | MODIFICATIONS TO THE BARREL HOLDER WITH HORIZONTAL AND VERTICAL INCLINATION ADJUSTABLE WITH ANTAGONIST SPRING. IN ORDER TO MAKE IT USEABLE AS A ROD HOLDER FOR SPECIFIC FISHING AS LEDGERING, FEEDER AND METOD. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: KUSCHALL AG, SWITZERLAND Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SCHAAP, ROBERTUS H.P.F.;KAUFMANN, FLORIAN;KUESCHALL, RAINER;REEL/FRAME:015520/0903 Effective date: 20040224 |
|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
REMI | Maintenance fee reminder mailed | ||
LAPS | Lapse for failure to pay maintenance fees | ||
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |